Camera optical lens

ABSTRACT

Provided is a camera optical lens including, sequentially from an object side to an image side, first to fifth lenses. The camera optical lens satisfies: −8.00≤(f1+f3+f5)/f≤−6.00; 1.00≤(R7+R8)/(R7−R8)≤3.00; R5/d5≤−15.00; 10.00≤d7/d8≤13.02; and 0.80≤f4/f≤1.50, where f denotes a focal length of the camera optical lens; f1, f3, f4 and f5 denote focal lengths of the first, third, fourth and fifth lenses, respectively; R5 denotes a curvature radius of an object side surface of the third lens; R7 and R8 denote curvature radiuses of object side and image side surfaces of the fourth lens, respectively; d5 and d7 denote on-axis thicknesses of the third and fourth lenses, respectively; and d8 denotes an on-axis distance from the image side surface of the fourth lens to an object side surface of the fifth lens. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

TECHNICAL FIELD

The present invention relates to the field of optical lens, and moreparticularly, to a camera optical lens suitable for handheld terminaldevices, such as smart phones or digital cameras, and camera devices,such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera optical lens is increasingly higher, but in general thephotosensitive devices of camera optical lens are nothing more thanCharge Coupled Devices (CCDs) or Complementary Metal-Oxide SemiconductorSensors (CMOS sensors). As the progress of the semiconductormanufacturing technology makes the pixel size of the photosensitivedevices become smaller, plus the current development trend of electronicproducts towards better functions and thinner and smaller dimensions,miniature camera optical lenses with good imaging quality have become amainstream in the market.

In order to obtain better imaging quality, the lens that istraditionally equipped in mobile phone cameras adopts a three-piece orfour-piece lens structure. Also, with the development of technology andthe increase of the diverse demands of users, and as the pixel area ofphotosensitive devices is becoming smaller and smaller and therequirement of the system on the imaging quality is becomingincreasingly higher, a five-piece lens structure gradually emerges inlens designs. Although the common five-piece lens has good opticalperformance, its refractive power, lens spacing and lens shape settingsstill have some irrationality, such that the lens structure cannotachieve high optical performance while satisfying design requirementsfor ultra-thin, wide-angle lenses having large apertures.

SUMMARY

In view of the problems, the present invention aims to provide a cameraoptical lens, which can achieve high optical performance whilesatisfying requirements for ultra-thin, wide-angle lenses having largeapertures.

In an embodiment, the present invention provides a camera optical lens.The camera optical lens includes, sequentially from an object side to animage side: a first lens having a negative refractive power; a secondlens having a positive refractive power; a third lens having a negativerefractive power; a fourth lens having a positive refractive power; anda fifth lens having a negative refractive power. The camera optical lenssatisfies following conditions: −8.00≤(f1+f3+f5)/f≤−6.00;1.00≤(R7+R8)/(R7−R8)≤3.00; R5/d5≤−15.00; 10.00≤d7/d8≤13.02; and0.80≤f4/f≤1.50, where f denotes a focal length of the camera opticallens; f1 denotes a focal length of the first lens; f3 denotes a focallength of the third lens; f4 denotes a focal length of the fourth lens;f5 denotes a focal length of the fifth lens; R5 denotes a curvatureradius of an object side surface of the third lens; R7 denotes acurvature radius of an object side surface of the fourth lens; R8denotes a curvature radius of an image side surface of the fourth lens;d5 denotes an on-axis thickness of the third lens; d7 denotes an on-axisthickness of the fourth lens; and d8 denotes an on-axis distance fromthe image side surface of the fourth lens to an object side surface ofthe fifth lens.

As an improvement, the camera optical lens further satisfies a followingcondition: 0.30≤(R3+R4)/(R3−R4)≤0.70, where R3 denotes a curvatureradius of an object side surface of the second lens; and R4 denotes acurvature radius of an image side surface of the second lens.

As an improvement, the camera optical lens further satisfies followingconditions: −5.11≤f1/f≤−1.55; −1.23≤(R1+R2)/(R1−R2)≤1.09; and0.03≤d1/TTL≤0.17, where R1 denotes a curvature radius of an object sidesurface of the first lens; R2 denotes a curvature radius of an imageside surface of the first lens; d1 denotes an on-axis thickness of thefirst lens; and TTL denotes a total optical length from the object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 0.42≤f2/f≤1.72; and 0.06≤d3/TTL≤0.27, where f2 denotes afocal length of the second lens; d3 denotes an on-axis thickness of thesecond lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −7.15≤f3/f≤−1.48; 0.60≤(R5+R6)/(R5−R6)≤1.24; and0.02≤d5/TTL≤0.08, where R6 denotes a curvature radius of an image sidesurface of the third lens; and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.

As an improvement, the camera optical lens further satisfies a followingcondition: 0.08≤d7/TTL≤0.35, where TTL denotes a total optical lengthfrom an object side surface of the first lens to an image plane of thecamera optical lens along an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −4.14≤f5/f≤−0.83; 1.77≤(R9+R10)/(R9−R10)≤5.44; and0.04≤d9/TTL≤0.14, where R9 denotes a curvature radius of the object sidesurface of the fifth lens; R10 denotes a curvature radius of an imageside surface of the fifth lens; d9 denotes an on-axis thickness of thefifth lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies a followingcondition: TTL/IH≤2.00, where TTL denotes a total optical length from anobject side surface of the first lens to an image plane of the cameraoptical lens along an optic axis; and IH denotes an image height of thecamera optical lens.

As an improvement, the camera optical lens further satisfies a followingcondition: Fno≤2.25, where Fno denotes an F number of the camera opticallens.

As an improvement, the camera optical lens further satisfies a followingcondition: 0.49≤f12/f≤2.25, where f12 denotes a combined focal length ofthe first lens and the second lens.

The present invention has advantageous effects in that the cameraoptical lens according to the present invention has excellent opticalperformance, is ultra-thin, wide-angle and has large apertures, makingit especially suitable for high-pixel camera optical lens assembly ofmobile phones and WEB camera optical lenses formed by camera elementssuch as CCD and CMOS.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiment can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present invention. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present invention;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present invention;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

The present invention will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent invention more apparent, the present invention is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

Referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 according to Embodiment1 of the present invention. The camera optical lens 10 includes fivelenses. Specifically, the camera optical lens 10 includes, sequentiallyfrom an object side to an image side, a first lens L1, an aperture S1, asecond lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5.An optical element such as a glass filter (GF) can be arranged betweenthe fifth lens L5 and an image plane Si.

A focal length of the camera optical lens 10 is defined as f, a focallength of the first lens L1 is defined as f1, a focal length of thethird lens L3 is defined as f3, and a focal length of the fifth lens L5is defined as f5. The camera optical lens 10 should satisfy a conditionof −8.00≤(f1+f3+f5)/f≤−6.00, which specifies a ratio of a sum of thefocal lengths of the first lens L1, the third lens L3 and the fifth lensL5 to the focal length of the camera optical lens 10. The appropriateconfiguration of the focal lengths of the first lens L1, the third lensL3 and the fifth lens L5 can correct aberrations of the optical system,thereby improving imaging quality.

A curvature radius of an object side surface of the fourth lens L4 isdefined as R7, and a curvature radius of an image side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 shouldsatisfy a condition of 1.00≤(R7+R8)/(R7−R8)≤3.00, which specifies ashape of the fourth lens L4. This can alleviate the deflection of lightpassing through the lens, thereby effectively reducing aberrations.

A curvature radius of an object side surface of the third lens L3 isdefined as R5, and an on-axis thickness of the third lens L3 is definedas d5. The camera optical lens 10 should satisfy a condition ofR5/d5≤−15.00, which specifies a shape of the third lens L3. When thecondition is satisfied, the lens processing can be facilitated.

An on-axis thickness of the fourth lens L4 is defined as d7, and anon-axis distance from the image side surface of the fourth lens L4 to anobject side surface of the fifth lens L5 is defined as d8. The cameraoptical lens 10 should satisfy a condition of 10.00≤d7/d8≤13.02, whichspecifies a ratio of the on-axis thickness of the fourth lens L4 to theon-axis distance from the image side surface of the fourth lens L4 to anobject side surface of the fifth lens L5. When the condition issatisfied, reduction of the total length can be facilitated.

A focal length of the fourth lens L4 is defined as f4. The cameraoptical lens 10 should satisfy a condition of 0.80≤f4/f≤1.50, whichspecifies a ratio of the focal length of the fourth lens L4 to the focallength of the camera optical lens 10. When the condition is satisfied,the appropriate distribution of the refractive power leads to betterimaging quality, thereby facilitating improving the performance of theoptical system.

A curvature radius of an object side surface of the second lens L2 isdefined as R3, and a curvature radius of an image side surface of thesecond lens L2 is defines as R4. The camera optical lens 10 shouldsatisfy a condition of 0.30≤(R3+R4)/(R3−R4)≤0.70, which specifies ashape of the second lens L2. This can facilitate balancing sphericalaberrations of the system.

The focal length of the first lens L1 is defined as f1. The cameraoptical lens 10 should satisfy a condition of −5.11≤f1/f≤−1.55, whichspecifies a ratio of the focal length of the first lens L1 to the focallength of the camera optical lens. When the condition is satisfied, thefirst lens L1 can have an appropriate negative refractive power, therebyfacilitating reducing aberrations of the system while facilitatingdevelopment towards ultra-thin, wide-angle lenses.

A curvature radius of an object side surface of the first lens L1 isdefined as R1, and a curvature radius of an image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 shouldsatisfy a condition of −1.23≤(R1+R2)/(R1−R2)≤1.09. When the condition issatisfied, the first lens L1 can effectively correct sphericalaberrations of the system.

A total optical length from the object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL, and an on-axis thickness of the first lens is defined asd1. The camera optical lens 10 should satisfy a condition of0.03≤d1/TTL≤0.17. When the condition is satisfied, ultra-thin lenses canbe facilitated.

The focal length of the second lens L2 is defined as f2. The cameraoptical lens 10 should satisfy a condition of 0.42≤f2/f≤1.72. Bycontrolling the positive refractive power of the second lens L2 withinthe reasonable range, correction of aberrations of the optical systemcan be facilitated.

An on-axis thickness of the second lens L2 is defined as d3. The cameraoptical lens 10 should satisfy a condition of 0.06≤d3/TTL≤0.27. When thecondition is satisfied, ultra-thin lenses can be facilitated.

The focal length of the third lens L3 is defined as f3. The cameraoptical lens 10 should satisfy a condition of −7.15≤f3/f≤−1.48. Theappropriate distribution of the refractive power leads to better imagingquality and a lower sensitivity.

The curvature radius of the object side surface of the third lens L3 isdefined as R5, and a curvature radius of an image side surface of thethird lens L3 is defined as R6. The camera optical lens 10 shouldsatisfy a condition of 0.60≤(R5+R6)/(R5−R6)≤1.24, which specifies ashape of the third lens L3. This can alleviate the deflection of lightpassing through the lens, thereby effectively reducing aberrations.

The on-axis thickness of the third lens L3 is defined as d5. The cameraoptical lens 10 should satisfy a condition of 0.02≤d5/TTL≤0.08. When thecondition is satisfied, ultra-thin lenses can be facilitated.

The on-axis thickness of the fourth lens L4 is defined as d7. The cameraoptical lens 10 should satisfy a condition of 0.08≤d7/TTL≤0.35. When thecondition is satisfied, ultra-thin lenses can be facilitated.

The focal length of the fifth lens L5 is defined as f5. The cameraoptical lens 10 should satisfy a condition of −4.14≤f5/f≤−0.83. Thiscondition for the fifth lens L5 can effectively make a light angle ofthe camera optical lens gentle and reduce the tolerance sensitivity.

A curvature radius of the object side surface of the fifth lens L5 isdefined as R9, and a curvature radius of an image side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 shouldsatisfy a condition of 1.77≤(R9+R10)/(R9−R10)≤5.44, which specifies ashape of the fifth lens L5. This can facilitate correction of anoff-axis aberration with development towards ultra-thin, wide-anglelenses.

An on-axis thickness of the fifth lens L5 is defined as d9. The cameraoptical lens 10 should satisfy a condition of 0.04≤d9/TTL≤0.14. When thecondition is satisfied, ultra-thin lenses can be facilitated.

Further, the total optical length from the object side surface of thefirst lens to the image plane of the camera optical lens along the opticaxis is defined as TTL, and an image height of the camera optical lens10 is defined as IH. The camera optical lens 10 should satisfy acondition of TTL/IH≤2.00. When the condition is satisfied, ultra-thinlenses can be facilitated.

An F number of the camera optical lens 10 is defined as Fno. The cameraoptical lens 10 should satisfy a condition of Fno≤2.25. When thecondition is satisfied, ultra-thin lenses having large apertures andhigh imaging performance can be achieved.

A combined focal length of the first lens L1 and the second lens L2 isdefined as f12. The camera optical lens 10 should satisfy a condition of0.49≤f12/f≤2.25. This can eliminate aberration and distortion of thecamera optical lens 10, suppress the back focal length of the cameraoptical lens 10, and maintain miniaturization of the camera lens systemgroup.

When the above conditions are satisfied, the camera optical lens 10 willhave high optical imaging performance while satisfying designrequirements for ultra-thin, wide-angle lenses having large apertures.With these characteristics, the camera optical lens 10 is especiallysuitable for high-pixel camera optical lens assembly of mobile phonesand WEB camera optical lenses formed by imaging elements such as CCD andCMOS.

In the following, examples will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,curvature radius, on-axis thickness, inflexion point position, andarrest point position are all in units of mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens L1 to the image plane Si of the camera opticallens along the optic axis) in mm.

In an example, inflexion points and/or arrest points can be arranged onthe object side surface and/or image side surface of the lens, so as tosatisfy the demand for the high quality imaging. The description belowcan be referred to for specific implementations.

Table 1 and Table 2 show design data of the camera optical lens 10according to Embodiment 1 of the present invention.

TABLE 1 R d nd vd S1 ∞ d0= −0.972 R1 −2.624 d1= 0.303 nd1 1.5444 v155.82 R2 11.061 d2= 0.664 R3 3.137 d3= 0.695 nd2 1.5444 v2 55.82 R4−1.137 d4= 0.151 R5 −25.346 d5= 0.210 nd3 1.6610 v3 20.53 R6 2.759 d6=0.298 R7 −6.304 d7= 0.753 nd4 1.5444 v4 55.82 R8 −0.879 d8= 0.060 R90.976 d9= 0.344 nd5 1.6610 v5 20.53 R10 0.546 d10= 0.499 R11 ∞ d11=0.210 ndg 1.5168 vg 64.17 R12 ∞ d12= 0.379

In the table, meanings of various symbols will be described as follows.

S1: aperture;

R: curvature radius of an optical surface;

R1: curvature radius of the object side surface of the first lens L1;

R2: curvature radius of the image side surface of the first lens L1;

R3: curvature radius of the object side surface of the second lens L2;

R4: curvature radius of the image side surface of the second lens L2;

R5: curvature radius of the object side surface of the third lens L3;

R6: curvature radius of the image side surface of the third lens L3;

R7: curvature radius of the object side surface of the fourth lens L4;

R8: curvature radius of the image side surface of the fourth lens L4;

R9: curvature radius of the object side surface of the fifth lens L5;

R10: curvature radius of the image side surface of the fifth lens L5;

R11: curvature radius of an object side surface of the optical filterGF;

R12: curvature radius of an image side surface of the optical filter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the optical filter GF;

d11: on-axis thickness of the optical filter GF;

d12: on-axis distance from the image side surface of the optical filterGF to the image plane;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

vg: abbe number of the optical filter GF.

Table 2 shows aspheric surface data of respective lens in the cameraoptical lens 10 according to Embodiment 1 of the present invention.

TABLE 2 Conic coefficient Aspherical coefficient k A4 A6 A8 A10 R1−8.1323E+00  6.7252E−01 −1.2128E+00 2.2948E+00 −3.4838E+00 R2−8.9094E+01  8.8121E−01  6.2099E−01 −1.9746E+01   1.6268E+02 R3−7.0412E+01  1.9551E−01 −1.4851E+00 2.7901E+01 −5.8628E+02 R4−4.6101E−01 −2.1987E−01 −3.2834E+00 4.5211E+01 −3.5686E+02 R5−5.0631E+01 −6.9011E−01 −2.2966E+00 1.7893E+01 −6.0801E+01 R6−4.7466E+01 −9.5994E−03 −2.9725E+00 1.5750E+01 −4.9198E+01 R7−5.1770E+01  5.6680E−01 −2.1261E+00 6.4317E+00 −1.3821E+01 R8−2.0320E+00  2.8143E−01 −9.7690E−01 2.1904E+00 −2.3879E+00 R9−3.8839E+00 −1.6867E−01 −9.1041E−01 2.9421E+00 −4.7870E+00 R10−2.4703E+00 −5.0255E−01  6.4942E−01 −6.0561E−01   3.9057E−01 Asphericalcoefficient A12 A14 A16 A18 A20 R1 3.9445E+00 −3.1321E+00 1.6297E+00−4.9493E−01 6.5406E−02 R2 −7.5062E+02   2.1396E+03 −3.7027E+03  3.5731E+03 −1.4734E+03  R3 6.5830E+03 −4.2022E+04 1.5268E+05−2.9543E+05 2.3726E+05 R4 1.7493E+03 −5.4013E+03 1.0130E+04 −1.0534E+044.6426E+03 R5 1.1710E+02 −1.1029E+02 3.1368E+00  7.1799E+01 −3.5251E+01 R6 1.0054E+02 −1.3352E+02 1.1079E+02 −5.2057E+01 1.0508E+01 R71.9829E+01 −1.8541E+01 1.0792E+01 −3.5340E+00 4.9655E−01 R8 1.0265E+00 3.3110E−01 −5.8602E−01   2.5463E−01 −3.8983E−02  R9 4.7870E+00−3.0402E+00 1.1824E+00 −2.5423E−01 2.3010E−02 R10 −1.7223E−01  5.0239E−02 −9.2039E−03   9.5326E−04 −4.2090E−05 

In Table 2, k is a conic coefficient, and A4, A6, A8, A10, A12, A14,A16, A18 and A20 are aspheric surface coefficients.y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A1 6x ¹⁶ +A18x ¹⁸ +A20x ²⁰   (1)

In the present embodiment, an aspheric surface of each lens surface usesthe aspheric surfaces shown in the above condition (1). However, thepresent invention is not limited to the aspherical polynomial form shownin the condition (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 10 according toEmbodiment 1 of the present invention. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,respectively; P2R1 and P2R2 represent the object side surface and theimage side surface of the second lens L2, respectively; P3R1 and P3R2represent the object side surface and the image side surface of thethird lens L3, respectively; P4R1 and P4R2 represent the object sidesurface and the image side surface of the fourth lens L4, respectively;and P5R1 and P5R2 represent the object side surface and the image sidesurface of the fifth lens L5, respectively. The data in the column“inflexion point position” refers to vertical distances from inflexionpoints arranged on each lens surface to the optic axis of the cameraoptical lens 10. The data in the column “arrest point position” refersto vertical distances from arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 2 0.235 1.145 0P1R2 1 0.765 0 0 P2R1 1 0.355 0 0 P2R2 0 0 0 0 P3R1 0 0 0 0 P3R2 1 0.2650 0 P4R1 3 0.175 0.765 1.085 P4R2 3 0.685 0.935 1.135 P5R1 2 0.405 1.3150 P5R2 2 0.455 1.835 0

TABLE 4 Number of arrest Arrest point Arrest point Arrest point pointsposition 1 position 2 position 3 P1R1 1 0.445 0 0 P1R2 0 0 0 0 P2R1 0 00 0 P2R2 0 0 0 0 P3R1 0 0 0 0 P3R2 1 0.475 0 0 P4R1 3 0.335 1.005 1.145P4R2 0 0 0 0 P5R1 1 0.815 0 0 P5R2 1 1.245 0 0

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 435 nm, 470 nm, 510 nm, 555 nm, 610nm and 650 nm after passing the camera optical lens 10 according toEmbodiment 1. FIG. 4 illustrates a field curvature and a distortion oflight with a wavelength of 555 nm after passing the camera optical lens10 according to Embodiment 1, in which a field curvature S is a fieldcurvature in a sagittal direction and T is a field curvature in atangential direction.

Tables 13 and 14 below further list various values of Embodiments 1, 2and 3 and values corresponding to parameters which are specified in theabove conditions.

As shown in Tables 13 and 14, Embodiment 1 satisfies the respectiveconditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 0.742 mm. The image height of the camera optical lens 10 is2.300 mm. The FOV (field of view) along a diagonal direction is 119.80°.Thus, the camera optical lens 10 can provide an ultra-thin, wide-anglelens while having on-axis and off-axis aberrations sufficientlycorrected, thereby leading to better optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1. A structure of a cameraoptical lens 20 in accordance with Embodiment 2 of the present inventionis illustrated in FIG. 5, which only describes differences fromEmbodiment 1.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present invention.

TABLE 5 R d nd vd S1 ∞ d0= −0.869 R1 −15.664 d1= 0.511 nd1 1.5444 v155.82 R2 2.458 d2= 0.353 R3 4.622 d3= 0.819 nd2 1.5444 v2 55.82 R4−0.860 d4= 0.060 R5 −45.412 d5= 0.210 nd3 1.6610 v3 20.53 R6 4.321 d6=0.129 R7 −1.852 d7= 0.986 nd4 1.5444 v4 55.82 R8 −0.921 d8= 0.096 R91.161 d9= 0.417 nd5 1.6610 v5 20.53 R10 0.659 d10= 0.500 R11 ∞ d11=0.210 ndg 1.5168 vg 64.17 R12 ∞ d12= 0.292

Table 6 shows aspheric surface data of respective lenses in the cameraoptical lens 20 according to Embodiment 2 of the present invention.

TABLE 6 Conic coefficient Aspherical coefficient k A4 A6 A8 A10 R1 1.0000E+01  4.7760E−01 −4.1305E−01 2.9135E−01 −5.2598E−02 R2−2.1749E+01  8.0383E−01 −4.9590E−01 6.2765E+00 −5.2384E+01 R3−2.7567E+01  1.3146E−01 −3.0585E−01 −3.8910E−01   9.6675E−01 R4−1.7935E−02 −1.2704E−01 −1.4089E+00 5.6790E+00 −1.5187E+01 R5−1.4842E+01 −4.1856E−01 −1.4389E+00 4.9425E+00 −1.5445E+01 R6−1.0128E+01 −2.8240E−02 −1.1529E+00 2.9483E+00 −4.1003E+00 R7 5.8750E+00  3.1779E−01 −8.9257E−01 1.2423E+00 −9.2386E−01 R8−1.4159E+00  4.3818E−01 −1.3960E+00 2.6727E+00 −3.1618E+00 R9−4.2398E+00 −9.8174E−02 −4.2627E−01 8.0989E−01 −8.3405E−01 R10−3.1422E+00 −1.5240E−01 −3.1883E−02 1.8714E−01 −2.2689E−01 Asphericalcoefficient A12 A14 A16 A18 A20 R1 −3.1712E−02   0.0000E+00 0.0000E+000.0000E+00 0.0000E+00 R2 2.3441E+02 −5.5384E+02 6.8705E+02 −3.5840E+02 0.0000E+00 R3 −1.3692E+01   0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00R4 6.1099E+00  3.1359E+01 −4.8394E+01  0.0000E+00 0.0000E+00 R54.2721E+01 −9.8345E+01 9.6658E+01 0.0000E+00 0.0000E+00 R6 3.0501E+00−1.2891E+00 4.6408E−01 0.0000E+00 0.0000E+00 R7 2.8081E−01  0.0000E+000.0000E+00 0.0000E+00 0.0000E+00 R8 2.1179E+00 −6.0754E−01 −3.8500E−02 4.1624E−02 0.0000E+00 R9 4.5136E−01 −1.1805E−01 1.1848E−02 0.0000E+000.0000E+00 R10 1.5197E−01 −6.2021E−02 1.5304E−02 −2.1003E−03  1.2339E−04

Table 7 and Table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present invention.

TABLE 7 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 2 0.165 1.025 0P1R2 0 0 0 0 P2R1 1 0.405 0 0 P2R2 0 0 0 0 P3R1 0 0 0 0 P3R2 2 0.2650.835 0 P4R1 3 0.105 0.545 0.975 P4R2 1 0.955 0 0 P5R1 2 0.445 1.275 0P5R2 2 0.505 1.765 0

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 1 0.275 0 P1R2 0 0 0 P2R1 0 0 0 P2R2 0 0 0 P3R1 0 0 0P3R2 1 0.415 0 P4R1 2 0.175 0.805 P4R2 0 0 0 P5R1 1 0.795 0 P5R2 1 1.2450

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 435 nm, 470 nm, 510 nm, 555 nm, 610nm and 650 nm after passing the camera optical lens 20 according toEmbodiment 2. FIG. 8 illustrates a field curvature and a distortion oflight with a wavelength of 555 nm after passing the camera optical lens20 according to Embodiment 2, in which a field curvature S is a fieldcurvature in a sagittal direction and T is a field curvature in atangential direction.

As shown in Tables 13 and 14, Embodiment 2 satisfies the respectiveconditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 0.742 mm. The image height of the camera optical lens 20 is2.300 mm. The FOV (field of view) along a diagonal direction is 119.80°.Thus, the camera optical lens 20 can provide an ultra-thin, wide-anglelens while having on-axis and off-axis aberrations sufficientlycorrected, thereby leading to better optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1. A structure of a cameraoptical lens 30 in accordance with Embodiment 3 of the present inventionis illustrated in FIG. 9, which only describes differences fromEmbodiment 1.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present invention.

TABLE 9 R d nd vd S1 ∞ d0= −0.869 R1 −15.664 d1= 0.511 nd1 1.5444 v155.82 R2 2.458 d2= 0.353 R3 4.622 d3= 0.819 nd2 1.5444 v2 55.82 R4−0.860 d4= 0.060 R5 −45.412 d5= 0.210 nd3 1.6610 v3 20.53 R6 4.321 d6=0.129 R7 −1.852 d7= 0.986 nd4 1.5444 v4 55.82 R8 −0.921 d8= 0.096 R91.161 d9= 0.417 nd5 1.6610 v5 20.53 R10 0.659 d10= 0.500 R11 ∞ d11=0.210 ndg 1.5168 vg 64.17 R12 ∞ d12= 0.292

Table 10 shows aspheric surface data of respective lenses in the cameraoptical lens 30 according to Embodiment 3 of the present invention.

TABLE 10 Conic coefficient Aspherical coefficient k A4 A6 A8 A10 R1 1.0000E+01 2.7406E−01 −1.9504E−01 1.3392E−01 −4.1791E−02 R2 −2.2000E+018.9952E−01 −1.9148E+00 3.1481E+01 −3.1436E+02 R3 −1.0624E+01 9.6907E−02−1.1679E+00 1.0549E+01 −5.0233E+01 R4 −1.5927E+00 3.6301E−01 −5.9742E+003.2717E+01 −1.0469E+02 R5 −5.1000E+01 4.5108E−01 −7.3428E+00 3.0429E+01−7.2600E+01 R6 −2.2896E+00 5.1510E−01 −4.2748E+00 1.3450E+01 −2.5213E+01R7 −2.3000E+01 2.8610E−01 −4.1953E−01 2.8936E−01  5.2322E−02 R8−9.8897E−01 −5.0558E−01   2.6576E+00 −7.9804E+00   1.5262E+01 R9−1.0000E+01 −4.2727E−01   3.0015E−01 −1.1654E−01  −1.7540E−01 R10−2.8760E+00 −5.0509E−01   7.1524E−01 −7.3217E−01   5.0464E−01 Asphericalcoefficient A12 A14 A16 A18 A20 R1 3.5189E−03  0.0000E+00 0.0000E+000.0000E+00 0.0000E+00 R2 1.8173E+03 −5.8234E+03 9.7680E+03 −6.6154E+03 0.0000E+00 R3 8.3762E+01  0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 R41.9190E+02 −1.9089E+02 7.9398E+01 0.0000E+00 0.0000E+00 R5 9.7770E+01−7.0130E+01 2.1504E+01 0.0000E+00 0.0000E+00 R6 2.7949E+01 −1.6850E+014.2512E+00 0.0000E+00 0.0000E+00 R7 −1.0323E−01   0.0000E+00 0.0000E+000.0000E+00 0.0000E+00 R8 −1.8509E+01   1.3654E+01 −5.5000E+00 9.1772E−01 0.0000E+00 R9 2.1659E−01 −9.3330E−02 1.5771E−02 0.0000E+000.0000E+00 R10 −2.3263E−01   7.0166E−02 −1.3151E−02  1.3660E−03−5.8206E−05 

Table 11 and Table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present invention.

TABLE 11 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 1 0.145 0 P1R2 0 0 0 P2R1 0 0 0 P2R2 0 0 0P3R1 2 0.075 0.165 P3R2 1 0.365 0 P4R1 2 0.335 0.935 P4R2 2 0.895 1.125P5R1 2 0.315 1.255 P5R2 2 0.445 1.795

TABLE 12 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 1 0.245 0 P1R2 0 0 0 P2R1 0 0 0 P2R2 0 0 0 P3R1 0 0 0P3R2 1 0.595 0 P4R1 2 0.765 1.015 P4R2 0 0 0 P5R1 1 0.615 0 P5R2 1 1.1450

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 435 nm, 470 nm, 510 nm, 555 nm, 610nm and 650 nm after passing the camera optical lens 30 according toEmbodiment 3. FIG. 12 illustrates field curvature and distortion oflight with a wavelength of 555 nm after passing the camera optical lens30 according to Embodiment 3, in which a field curvature S is a fieldcurvature in a sagittal direction and T is a field curvature in atangential direction.

As shown in Tables 13 and 14, Embodiment 3 satisfies the respectiveconditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 0.741 mm. The image height of the camera optical lens 30 is2.300 mm. The FOV (field of view) along a diagonal direction is 119.80°.Thus, the camera optical lens 30 can provide an ultra-thin, wide-anglelens while having on-axis and off-axis aberrations sufficientlycorrected, thereby leading to better optical characteristics.

TABLE 13 Embodiment Embodiment Embodiment Parameters 1 2 3 f 1.654 1.6551.653 f1 −3.853 −4.225 −3.852 f2 1.622 1.896 1.402 f3 −3.720 −3.670−5.907 f4 1.784 1.341 2.442 f5 −2.726 −2.066 −3.419 f12 1.836 2.4861.627 d1 0.303 0.308 0.511 d3 0.695 0.569 0.819 d5 0.210 0.248 0.210 d70.753 1.054 0.986 d8 0.060 0.081 0.096 d9 0.344 0.368 0.417 Fno 2.232.23 2.23 TTL 4.57 4.58 4.58

TABLE 14 Embodiment Embodiment Embodiment Conditions 1 2 3 (R1 + R2)/(R1− R2) −0.62 0.38 0.73 (R3 + R4)/(R3 − R4) 0.47 0.35 0.69 (R5 + R6)/(R5 −R6) 0.80 −0.30 0.83 (R7 + R8)/(R7 − R8) 1.32 1.05 2.98 (R9 + R10)/(R9 −R10) 3.54 2.69 3.63 f1/f −2.33 −2.55 −2.33 f2/f 0.98 1.15 0.85 f3/f−2.25 −2.22 −3.57 f4/f 1.08 0.81 1.48 f5/f −1.65 −1.25 −2.07 (f1 + f3 +f5)/f −6.23 −6.02 −7.97 d7/d8 12.55 13.01 10.27 R5/d5 −120.70 −15.31−216.25 d1/TTL 0.07 0.07 0.11 d3/TTL 0.15 0.12 0.18 d5/TTL 0.05 0.050.05 d7/TTL 0.16 0.23 0.22 d9/TTL 0.08 0.08 0.09 TTL/IH 1.99 1.99 1.99f12/f 1.11 1.50 0.98

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present invention. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present invention.

What is claimed is:
 1. A camera optical lens, comprising, sequentiallyfrom an object side to an image side: a first lens having a negativerefractive power; a second lens having a positive refractive power; athird lens having a negative refractive power; a fourth lens having apositive refractive power; and a fifth lens having a negative refractivepower, wherein the camera optical lens satisfies following conditions:−8.00≤(f1+f3+f5)/f≤−6.00;1.00≤(R7+R8)/(R7−R8)≤3.00;R5/d5≤−15.00;10.00≤d7/d8≤13.02; and0.80≤f4/f≤1.50, where f denotes a focal length of the camera opticallens; f1 denotes a focal length of the first lens; f3 denotes a focallength of the third lens; f4 denotes a focal length of the fourth lens;f5 denotes a focal length of the fifth lens; R5 denotes a curvatureradius of an object side surface of the third lens; R7 denotes acurvature radius of an object side surface of the fourth lens; R8denotes a curvature radius of an image side surface of the fourth lens;d5 denotes an on-axis thickness of the third lens; d7 denotes an on-axisthickness of the fourth lens; and d8 denotes an on-axis distance fromthe image side surface of the fourth lens to an object side surface ofthe fifth lens.
 2. The camera optical lens as described in claim 1,further satisfying a following condition:0.30≤(R3+R4)/(R3−R4)≤0.70, where R3 denotes a curvature radius of anobject side surface of the second lens; and R4 denotes a curvatureradius of an image side surface of the second lens.
 3. The cameraoptical lens as described in claim 1, further satisfying followingconditions:−5.11≤f1/f≤−1.55;−1.23≤(R1+R2)/(R1−R2)≤1.09; and0.03≤d1/TTL≤0.17, where R1 denotes a curvature radius of an object sidesurface of the first lens; R2 denotes a curvature radius of an imageside surface of the first lens; d1 denotes an on-axis thickness of thefirst lens; and TTL denotes a total optical length from the object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 4. The camera optical lens as described in claim 1,further satisfying following conditions:0.42≤f2/f≤1.72; and0.06≤d3/TTL≤0.27, where f2 denotes a focal length of the second lens; d3denotes an on-axis thickness of the second lens; and TTL denotes a totaloptical length from an object side surface of the first lens to an imageplane of the camera optical lens along an optic axis.
 5. The cameraoptical lens as described in claim 1, further satisfying followingconditions:−7.15≤f3/f≤−1.48;0.60≤(R5+R6)/(R5−R6)≤1.24; and0.02≤d5/TTL≤0.08, where R6 denotes a curvature radius of an image sidesurface of the third lens; and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.
 6. The camera optical lens asdescribed in claim 1, further satisfying a following condition:0.08≤d7/TTL≤0.35, where TTL denotes a total optical length from anobject side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.
 7. The camera optical lens asdescribed in claim 1, further satisfying following conditions:−4.14≤f5/f≤−0.83;1.77≤(R9+R10)/(R9−R10)≤5.44; and0.04≤d9/TTL≤0.14, where R9 denotes a curvature radius of the object sidesurface of the fifth lens; R10 denotes a curvature radius of an imageside surface of the fifth lens; d9 denotes an on-axis thickness of thefifth lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 8. The camera optical lens as described in claim 1,further satisfying a following condition:TTL/IH≤2.00, where TTL denotes a total optical length from an objectside surface of the first lens to an image plane of the camera opticallens along an optic axis; and IH denotes an image height of the cameraoptical lens.
 9. The camera optical lens as described in claim 1,further satisfying a following condition:Fno≤2.25, where Fno denotes an F number of the camera optical lens. 10.The camera optical lens as described in claim 1, further satisfying afollowing condition:0.49≤f12/f≤2.25, where f12 denotes a combined focal length of the firstlens and the second lens.